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All Journal International Journal of Evaluation and Research in Education (IJERE) Pythagoras: Jurnal Matematika dan Pendidikan Matematika Jurnal Penelitian dan Pengembangan Pendidikan Jurnal Pengajaran MIPA Journal on Mathematics Education (JME) Jurnal Infinity Kreano, Jurnal Matematika Kreatif-Inovatif Journal on Mathematics Education (JME) Jurnal Pengajaran Matematika dan Ilmu Pengetahuan Alam EurekaMatika (Jurnal Online Matematika S1) Jurnal Riset Pendidikan Matematika AKSIOMA: Jurnal Program Studi Pendidikan Matematika Transformasi: Jurnal Pengabdian Masyarakat Profesi Pendidikan Dasar JIPM (Jurnal Ilmiah Pendidikan Matematika) Pedagogia: Jurnal Pendidikan Jurnal Elemen Eduma : Mathematics Education Learning and Teaching AKSIOMA Jurnal Gantang Al-Jabar : Jurnal Pendidikan Matematika Jurnal Kajian Pembelajaran Matematika Al Ishlah Jurnal Pendidikan REiD (Research and Evaluation in Education) Jurnal Penelitian Pendidikan IPA (JPPIPA) Jurnal Analisa Journal of Mathematics and Mathematics Education (JMME) PAEDAGOGIA PRISMA Juring (Journal for Research in Mathematics Learning) Formatif: Jurnal Ilmiah Pendidikan MIPA JTAM (Jurnal Teori dan Aplikasi Matematika) Lentera: Jurnal Ilmiah Kependidikan Tarbawi: Jurnal Keilmuan Manajemen Pendidikan International Journal on Emerging Mathematics Education Theorems (The Original Research of Mathematics) International Journal of Pedagogy and Teacher Education JURNAL EKSAKTA PENDIDIKAN (JEP) Jurnal Surya Masyarakat SJME (Supremum Journal of Mathematics Education) Jurnal Cendekia : Jurnal Pendidikan Matematika Pelita : Jurnal Penelitian dan Karya Ilmiah Jurnal Math Educator Nusantara: Wahana Publikasi Karya Tulis Ilmiah di Bidang Pendidikan Matematika MAJAMATH: Jurnal Matematika dan Pendidikan Matematika Indonesian Journal on Learning and Advanced Education (IJOLAE) FIBONACCI: Jurnal Pendidikan Matematika dan Matematika Jurnal Dedikasi Pendidikan Symmetry: Pasundan Journal of Research in Mathematics Learning and Education M A T H L I N E : Jurnal Matematika dan Pendidikan Matematika Math Educa Journal Gema Wiralodra Integral : Pendidikan Matematika JPMI (Jurnal Pembelajaran Matematika Inovatif) MATHEMA: JURNAL PENDIDIKAN MATEMATIKA Community Development Journal: Jurnal Pengabdian Masyarakat Southeast Asian Mathematics Education Journal Perspektif : Jurnal Ilmu Administrasi International Journal on Teaching and Learning Mathematics Jurnal Surya Masyarakat Gagasan Pendidikan Indonesia Pasundan Journal of Mathematics Education : Jurnal Pendidikan Matematika Jurnal PEKA (Pendidikan Matematika) Jurnal Pendidikan dan Teknologi Indonesia Mosharafa: Jurnal Pendidikan Matematika Jurnal Pendidikan Matematika Unpatti These proceedings represent the work of researchers participating in The International Conference on Elementary Education (ICEE) which is being hosted by the Elementary Education Study Programme School of Postgraduate Studies, Universitas Pendidikan Hipotenusa: Journal of Research Mathematics Education (HJRME) Jurnal Eurekamatika Edumatika JES-MAT (Jurnal Edukasi dan Sains Matematika) Unnes Journal of Mathematics Education Jurnal Didactical Mathematics Prosiding Sesiomadika Edumatica: Jurnal Pendidikan Matematika International Journal of Trends in Mathematics Education Research (IJTMER) JNPM (Jurnal Nasional Pendidikan Matematika) International Journal of Mathematics and Mathematics Education (IJMME) Kelola: Jurnal Manajemen Pendidikan Ta'dib IndoMath: Indonesia Mathematics Education Sipakaraya : Jurnal Pengabdian Masyarakat JRAMathEdu (Journal of Research and Advances in Mathematics Education) SIGMA DIDAKTIKA: Jurnal Pendidikan Matematika Hipotenusa: Journal of Mathematical Society Jurnal Infinity International Journal of Applied Learning and Research in Algebra International Journal of Geometry Research and Inventions in Education Journal on Mathematics Education Research Pi Radian Journal Jurnal Pendidikan MIPA Jurnal Pendidikan Progresif Journal on Mathematics Education SJME (Supremum Journal of Mathematics Education) Mathema: Jurnal Pendidikan Matematika
Jarnawi Afgani Dahlan
Universitas Pendidikan Indonesia
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Validation of CORE-Model-Based Geometry Teaching Materials Supported by Wingeom Software Sri Yulianti; Darhim Darhim; Bambang A.P Martadiputra; Jarnawi Afgani Dahlan
AL-ISHLAH: Jurnal Pendidikan Vol 17, No 4 (2025): DECEMBER 2025
Publisher : STAI Hubbulwathan Duri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35445/alishlah.v17i4.7284

Abstract

This study aims to evaluate the content validity of geometry teaching materials designed for Grade VII junior high school students. These materials were developed using the Connecting, Organizing, Reflecting, and Extending (CORE) instructional model, supported by Wingeom software, to enhance students' conceptual understanding of geometry. To assess validity, expert validation was conducted using structured questionnaires. Six categories of experts participated: subject-matter experts, media experts, mathematicians, school mathematicians, language experts, and learning evaluation experts. Each category included five experts. The Content Validity Index (CVI) was employed to quantify the degree of agreement among experts regarding the relevance of the materials. The results showed high content validity across all expert groups. Specifically, the s-CVI values were 0.96 for media experts, 0.98 for subject-matter experts, 0.97 for mathematicians, 0.96 for school mathematicians, and similarly high scores for evaluation and language experts. These scores exceed the commonly accepted threshold for strong content validity (s-CVI ≥ 0.90). The high CVI values indicate that the geometry teaching materials are valid in terms of content, language, instructional design, and evaluation components. Consequently, the materials are appropriate for use in further research related to mathematics learning processes at the junior high school level.
Relationship between Mathematical Communication Ability and Adversity Quotient of Junior High School Students Candraningsih, Yosy; Nurlaelah, Elah; Dahlan, Jarnawi Afgani
PYTHAGORAS Jurnal Matematika dan Pendidikan Matematika Vol. 20 No. 1 (2025)
Publisher : Department of Mathematics Education, Faculty of Mathematics and Natural Sciences, UNY

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/pythagoras.v20i2.81461

Abstract

Students' perceptions of the difficulty of mathematics often influence their mathematical abilities. Students who possess a strong Adversity Quotient (AQ) are likelier to demonstrate improved mathematical abilities, particularly in mathematical communication abilities. This study examines the relationship between mathematical communication ability and students' Adversity Quotient (AQ). The research employed a correlational method, with a sample of 31 ninth-grade students from a junior high school in Bandung City during the 2024/2025 academic year. Data were collected through mathematical communication ability tests and an Adversity Quotient (AQ) questionnaire. The collected data were analyzed in two stages: an Exploratory Data Analysis (EDA), which included normality and linearity tests, followed by Confirmatory Data Analysis (CDA), which used the Pearson correlation test. The results revealed a correlation coefficient of 0.672, indicating a medium-level relationship between students' mathematical communication ability and their Adversity Quotient (AQ).
Middle School Students' Mathematics Learning Difficulties in Function Material: A Systematic Literature Review Aqidatul Izzah; Didi Suryadi; Jarnawi Afgani Dahlan; Mirza Aulia
MATHEMA: JURNAL PENDIDIKAN MATEMATIKA Vol. 7 No. 2 (2025): MATHEMA
Publisher : Universitas Teknokrat Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33365/jm.v7i2.108

Abstract

This study aims to explore how the difficulties of high school students in learning mathematics, especially in functional materials. The data obtained in this study were 7 out of 22 articles and theses after going through a series of PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analysis) stages with the Systematic Literature Review (SLR) approach. The articles and theses obtained came from Google Schoolar with the help of the Publish or Perish application. Based on the studies that have been analyzed, the results are obtained that students' mathematical difficulties, especially in function, are divided into three major parts, namely difficulties in the learning process, difficulties in working on problems, and internal and external difficulties. On the other hand, there is also an anticipation to reduce the occurrence of mathematical difficulties in students, including creating a supportive learning environment from the way of teaching and educating teachers, student readiness in learning, and comfortable school environments.
Co-Authors ., Nursusanto A, Abdul Wahab Aan Hendroanto Ade Irma Ade Rohayati Adzni Nurul Fajriani Afidah Mas'ud Aflich Yusnita Fitrianna Aflich Yusnita Fitrianna Afriani . Agus Soleh Riyadi AHMAD LUTFI Ahmad Lutfi Fauzi Ahmad Mukhibin, Ahmad Aisyah, Ani Al Jupri Amelia, Irma Anggit Prabowo Anik Yuliani Anisa Bella Fathia, Anisa Bella Anjar Yogaswara Anna Cesaria Aqidatul Izzah Ariany, Riva Lesta Arif Muchyidin Ariyanti Jalal Asfar, A.M.Irfan Taufan Asfar, Andi Muhamad Iqbal Akbar Aulia, Mirza Azmidar Azmidar Bambang A.P Martadiputra bambang avip Priatna Bambang Avip Priatna Martadiputra cakrawala Bambang Mardi Sentosa Bana G. Kartasasmita Bariyah, Nusrotul Beni Yusepa Ginanjar Putra Bonyah, Ebenezer Candraningsih, Yosy Chandrawati, Titi Cipta, Eliva Sukma Dadan Dasari Dadang Juandi Dadang Juandi Dahlia Fisher Darhim Darhim Dasari, Dadan Afgani Deswita, Ria Dewanto, Stanley Dewanto, Stanley - Dewi Rachmatin Dewi, Rivani Adistia Dian Nopitasari Dian Usdiyana Didi Suryadi Dina Damayanti Dina Khanifatul Ardhilah Dini Andiani Dui Kurniasih Dwi Agustini, Dwi Edi Irawan Edi Mulyadi Edi Supriyadi Ekasatya Aldila Afriansyah Elah Nurlaelah Elah Nurlaelah Elisya, Nur Elmawati, Elmawati Elsayed, Ebrahim E. Elvandri Yogi Pratama Endang Cahya Mulyaning A. Epran, Epran Erma Monariska Ernawati Esterlina Esterlina Esti Harini Eva Musyrifah, Eva Fadhil Zil Ikram Fatimah, Siti Fauzi, Ahmad Lutfi Fauziyah, Isna Febriansyah, Muhammad Dwiky Febrianti, Tri Sedya Firda, Nadiatun Fitria Maghfiroh, Fitria Fitria Sulistyowati Fitria, Nida Fitriani agustina Fitriyah, Yuni Fitriyani, Harina Gelar Dwirahayu Ginda M.A.Siregar Gí¼rbí¼z, Ferit Gunawan, Sanie Rachma Setia Gusni Satriawati, Gusni Hafizah Delyana Hajizah, Mimi Nur Halimatussa'diah Lubis Hans Vos Hasti Robiasih Hendriyanto, Agus Heri Sutarno Hudaya Latuconsina Husni, Niakmatul Idrus Alhaddad Iik Nurhikmayati, Iik Ilham Muhammad Inayah, Clara fadhilah Indah Puspita Sari Indah Puspita Sari, Indah Puspita Indriani, Ulfa Dwi Irena Puji Luritawaty Iryana Muhammad, Iryana Iskandar, Idris Isra Nurmai Yenti Johannis Takaria Joseph Taban Jozua Sabandar Jozua Sabandar Jozua Sabandar Kadarisma, Gida Kartika Yulianti Khusaini, Khusaini Kisdiono, Toyib Febri Krida Singgih Kuncoro Kristiani, Yasinta Dian Kyaruzi, Florence Lethulur, Nelma D Lethulur, Nelma Dortje M. Anang Jatmiko M. Hafiz Maknun, Churun Lu'lu'il Mardiah Annur, Mardiah Mardliyah, Syifa Marthadiputra, Bambang Avip Priatna Mastur Thoyib Kesi Maudy, Septiani Yugni Mefa Indriati Mefa Indriati Megawati . Minasyan, Sona Mirza Aulia Ms Nurjanah Muchamad Subali Noto Muchlis, Effie Efrida Muhaimin, Lukman Hakim Muhamad I. Suhifatullah Muhamad Syahidul Qirom Muhammad Taqiyuddin Muhammad Win Afgani Mulyaning A., Endang Cahya Mumtazah, Nadia Wardah Mustadin Mustadin Mustofa Kamil, Mustofa N. Nurjanah Nafiah, Siti Nanang Priatna Nar Herrhyanto Naufal Ishartono Neneng Tita Rosita Nia Kania Nimrod Sitinjak Nti, Seth Junior Nurannisa, Andi Nurbaiti Widyasari Nurrohmah . Nusrotul Bariyah Onesimus Laia, Harun Pahmi, Samsul Panjaitan, M. Azhari Pebrianti, Aneu Permatasari, Revina Pieter Zakarias Tupamahu Puspita, Wita Ratna Putri Armania Agustina Alfitri Putri Wahyuni Putri, Amelia Defrianti Putri, Mei Radia Rachmawati Khaerun Nisa Raden Nabilah Fahrani Rahmy Zulmaulida Raksanegara, Fadel Rani Sugiarni Rani Sugiarni Rasilah, Rasilah Ratni Purwasih Ratni Purwasih Ratni Purwasih, Ratni Ratu Sarah Fauziah Iskandar Reni Nuraeni Reni Nuraeni, Reni Restriani Utami Revina Permatasari Ria Deswita Rika Mulyati Mustika Sari Rina Oktaviyanthi, Rina Ristiana, Muhammad Ghiyats Riva Lesta Ariany Rizky Rosjanuardi Rofi'ah, Nur Rosmanita Rosmanita RR. Ella Evrita Hestiandari Ruli, Redo Martila Runisah, Runisah Rusyid, Husnul Khatimah Sabur, Ambuy Sahara, Sani Saputra, Andari Sarah Inayah Sari Herlina Septian, Ari Seth Junior Nti Sihombing, Rika Elizabet Silitonga, R. H. Yanti Simbolon, Asep Siti Fatimah Siti Sohibah Somchai Watcharapunyawong Sona Minasyan Sri Adi Widodo Sri Adi Widodo Sri Tatminingsih Sri Yulianti Stanley - Dewanto Stanley Dewanto Stanley Pandu Dewanto Subedi Subedi Sudirman Sudirman Sudirman Sufyani Prabawanto, Sufyani Sugianto, Andi Suhaya Suhaya Suhaya Suhaya, Suhaya Sulistiawati Sulistiawati Sulistiawati Sulistiawati Sulistiawati Sulistiawati Syahbudin, Fauzan Syifa Syafira Al Ghifari Takaria, Johannis Tatang Herman, Tatang TATI NURHAYATI Tita Rosita Tri Nopriana, Tri Trisnowali MS, Andi Trysa Gustya Manda Turmudi Umbara, Hanifa Dina Aulia Dewi Utami, Nadya Syifa Vos, Hans Wahyudin ,- Wahyudin Wahyudin Wahyudin, Irmansyah Wahyuni, Sela Wardat, Yousef Wicaksono, Elga Nor Widyasari, Nurbaiti Yasrizal Yaya S Kusumah Yaya S. Kusumah Yaya S. Kusumah Yaya S. Kusumah Yaya S. Kusumah Yaya Sukjaya Kusumah Yelli Oktavien Yelli Oktavien Yuliardi, Ricki Zaenal Arifin Zakiya Aulia Ilma Zetriuslita Zulkarnain .